I advise you not to cherish noble Yi, and I advise you to cherish youth. Spare a job: you must accept it.
When the flowers should be folded, we should fold them quickly, and don't wait for the flowers to wither before folding one. (Flowers bloom: there are flowers)
2. Translation
I advise you not to care too much about the pursuit of fame and fortune, but to cherish the best time for teenagers to study.
Fold the flowers when they can, and don't wait for the flowers to wither before folding an empty branch.